Returning in this audiophile passion I have bought two Carver amps , a TFM45 and a TFM25, in a "Only for spare parts "condition ....
The 25 start runing easy after recap and relay clean , but the 45......
After some extra time (on year) I finally repair it.
the failure appears after some months . Changing all output transistor and insulation pads finally don't fail any more.
Really I enjoy it so much